2023/05/02 by K. V. Stepanyantz, Stepanyantz, Konstantin
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.2305.01295
openalex publication_date 2023/05/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The gauge coupling unification is investigated at the classical level under the assumptions that the gauge symmetry breaking chain is E8→ E7× U1 → E6× U1 → SO10× U1 → SU5 × U1 → SU3 × SU2 × U1 and only components of the representations 248 of E8 can acquire vacuum expectation values. We demonstrate that there are several options for the relations between the gauge couplings of the resulting theory, but the only symmetry breaking pattern corresponds to α3=α2 and sin2θW=3/8. Moreover, only for this option the particle content of the resulting theory includes all MSSM superfields. It is also noted that this symmetry breaking pattern corresponds to the case when all representation which acquire vacuum expectation values have the minimal absolute values of the relevant U1 charges.